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 Blockings and server performance?

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learntsql

524 Posts

Posted - 2010-07-27 : 06:58:01
Hi All,
I have 20 databases in single instance.
How blockings in one database effect on other database/Application or
Overall server performance?
Please guide me.
TIA.

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2010-07-27 : 13:17:40
Blocking in one database doesn't necessarily affect other databases, unless your queries span across other databases. But what blocking does is slow down your transactions, which could translate into consuming more system resources such as CPU and memory and thus affecting other databases.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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learntsql

524 Posts

Posted - 2010-07-28 : 00:43:09
Thanks Tara,
If the blocked transactions in one database consume more resourses like CPU and Memory then will it effect overall server performance?
then how to handle such kind of issues?
TIA.
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tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2010-07-28 : 12:42:51
Yes it will affect the overall server performance. You handle them by fixing the blocking (fixing the queries, adding indexes, removing indexes, fixing code, changing the database design, fixing the hardware, ...).

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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